| Scientific Name | Notes | Rarity Ranks | Common Name |
|---|---|---|---|
| Allenrolfea occidentalis | CNPS-EB: B-PV | iodine bush | |
| Amsinckia eastwoodiae | CNPS-EB: A1 | Eastwood's fiddleneck | |
| Amsinckia lycopsoides | CNPS-EB: C | bugloss-flowered fiddleneck, bugloss fiddleneck | |
| Androsace elongata subsp. acuta | CNPS-EB: *A2 State CNPS: 4.2 Global Rank: G5?T3T4 CNDDB Rank: S3S4 | California androsace | |
| Atriplex argentea var. expansa | CNPS-EB: B | silverscale | |
| Atriplex depressa | CNPS-EB: *A2 State CNPS: 1B.2 Global Rank: G2 CNDDB Rank: S2 | brittlescale | |
| Brodiaea terrestris subsp. terrestris | CNPS-EB: B-PV | dwarf brodiaea | |
| California macrophylla | (formerly Erodium macrophyllum | CNPS-EB: B-PV | round-leaved filaree |
| Convolvulus simulans | CNPS-EB: *A2 State CNPS: 4.2 Global Rank: G4 CNDDB Rank: S4 | small-flowered morning-glory | |
| Delphinium hesperium subsp. hesperium | CNPS-EB: B | western larkspur | |
| Extriplex joaquinana | CNPS-EB: *A2 State CNPS: 1B.2 Global Rank: G2 CNDDB Rank: S2 | San Joaquin spearscale, San Joaquin saltbush | |
| Fritillaria agrestis | CNPS-EB: *A2 State CNPS: 4.2 Global Rank: G3 CNDDB Rank: S3 | stinkbells | |
| Glyceria leptostachya | CNPS-EB: A1 | narrow manna grass, Davy's mannagrass | |
| Hordeum depressum | CNPS-EB: B | low barley, alkali barley | |
| Layia chrysanthemoides | CNPS-EB: A2 | smooth layia | |
| Lepidium acutidens | CNPS-EB: C | sharp-toothed pepper-grass | |
| Lepidium dictyotum | CNPS-EB: B | alkali pepper-grass | |
| Lepidium latipes | CNPS-EB: B-PV | dwarf peppergrass | |
| Lomatium caruifolium var. caruifolium | CNPS-EB: B | caraway-leaved lomatium | |
| Microseris campestris | CNPS-EB: A1 | San Joaquin microseris | |
| Muilla maritima | CNPS-EB: B | common muilla | |
| Myosurus minimus subsp. minimus | CNPS-EB: B-PV | common mouse-tail | |
| Navarretia cotulifolia | CNPS-EB: *A2 State CNPS: 4.2 Global Rank: G4 CNDDB Rank: S4 | cotula navarretia | |
| Plagiobothrys acanthocarpus | CNPS-EB: B-PV | adobe popcornflower, adobe allocarya | |
| Plantago elongata | CNPS-EB: B-PV | annual coast plantain | |
| Pogogyne zizyphoroides | CNPS-EB: A2 | Sacramento beardstyle | |
| Psilocarphus brevissimus var. brevissimus | CNPS-EB: B | dwarf woollyheads, dwarf woolly-marbles | |
| Puccinellia simplex | CNPS-EB: *A2 State CNPS: 1B.2 Global Rank: G2 CNDDB Rank: S2 | little alkali grass | |
| Quercus palmeri | CNPS-EB: A2 | Palmer's oak | |
| Sesuvium verrucosum | CNPS-EB: B | western sea-purslane, sea-purslane | |
| Spergularia macrotheca var. longistyla | CNPS-EB: *A2 State CNPS: 1B.2 Global Rank: G5T2 CNDDB Rank: S2 | large-flowered sand spurry | |
| Trifolium depauperatum var. depauperatum | (vars. amplectens and truncatu | CNPS-EB: B | dwarf sack clover |
| Tropidocarpum capparideum | CNPS-EB: *A1 State CNPS: 1B.1 Global Rank: G1 CNDDB Rank: S1 | caper-fruited tropidocarpum | |
| Deinandra lobbii | (formerly Hemizonia l.) | CNPS-EB: C | three-rayed tarweed |
| Erythranthe microphylla | CNPS-EB: A1x | ||
| Forestiera pubescens | CNPS-EB: B-PV | desert olive | |
| Leptochloa fusca subsp. uninervia | CNPS-EB: A1 | mexican sprangletop, dense-flowered sprangle-top | |
| Rumex occidentalis | CNPS-EB: A2 | western dock |